/* Sadenet theme extensions — auth pages + utility classes */

/* Show/hide icons based on dark mode */
.sdn-body .sdn-icon-dark { display: none; }
.sdn-body.dark .sdn-icon-light { display: none; }
.sdn-body.dark .sdn-icon-dark { display: inline-flex; }

/* Dark-mode fix: .tab.active uses var(--ink) bg with #fff text — invisible in dark.
   Override to brand color when dark. */
body.dark .tab.active {
  background: var(--brand);
  color: var(--ink-on-brand);
}

/* Auth layout (login, forgot password) */
.sdn-auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px 16px;
  background:
    radial-gradient(1200px 600px at 80% -10%, var(--brand-tint), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, var(--brand-soft), transparent 60%),
    var(--bg);
}
.sdn-auth-body.dark {
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(255,203,8,0.10), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(255,203,8,0.06), transparent 60%),
    var(--bg);
}

.sdn-auth-wrap {
  width: 100%;
  max-width: 460px;
  position: relative;
}

.sdn-auth-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 32px;
}

.sdn-auth-brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.sdn-auth-title {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 6px;
}
.sdn-auth-sub {
  color: var(--ink-mute);
  font-size: 14px;
  margin: 0 0 22px;
}

.sdn-form-group { margin-bottom: 14px; }
.sdn-form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-soft);
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}
.sdn-input,
.sdn-textarea,
.sdn-select {
  width: 100%;
  padding: 12px 14px;
  font: inherit;
  font-size: 14px;
  color: var(--ink);
  background: var(--bg-elev);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 150ms, box-shadow 150ms, background 150ms;
}
.sdn-input:focus,
.sdn-textarea:focus,
.sdn-select:focus {
  border-color: var(--brand-deep);
  box-shadow: 0 0 0 4px var(--brand-soft);
}
.sdn-input::placeholder { color: var(--ink-mute); }

.sdn-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: transform 80ms, background 150ms, box-shadow 150ms;
}
.sdn-btn-primary {
  background: var(--brand);
  color: var(--ink-on-brand);
  box-shadow: 0 1px 0 rgba(0,0,0,0.05);
}
.sdn-btn-primary:hover  { background: var(--brand-deep); }
.sdn-btn-primary:active { transform: translateY(1px); }
.sdn-btn-block { width: 100%; }
.sdn-btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line-strong);
}
.sdn-btn-ghost:hover { background: var(--brand-tint); }

.sdn-link {
  color: var(--brand-deep);
  text-decoration: none;
  font-weight: 600;
}
.sdn-link:hover { text-decoration: underline; }

.sdn-alert {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 14px;
  border: 1px solid transparent;
}
.sdn-alert-danger {
  background: var(--danger-soft);
  color: var(--danger);
  border-color: var(--danger-soft);
}
.sdn-alert-success {
  background: var(--positive-soft);
  color: var(--positive);
}
.sdn-alert-info {
  background: var(--info-soft);
  color: var(--info);
}

.sdn-auth-theme-toggle {
  position: absolute;
  top: -52px;
  right: 0;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  cursor: pointer;
  font-size: 16px;
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

@media (max-width: 520px) {
  .sdn-auth-card { padding: 22px; }
  .sdn-auth-theme-toggle { top: 12px; right: 12px; position: fixed; }
}